* executor is performing an UPDATE that could not use an
* optimization like heapam's HOT (in more general terms a
* call to table_tuple_update() took place and set
- * 'update_indexes' to TUUI_All). Receiving this hint makes
+ * 'update_indexes' to TU_All). Receiving this hint makes
* us consider if we should pass down the 'indexUnchanged'
* hint in turn. That's something that we figure out for
* each index_insert() call iff 'update' is true.
* HOT has been applied and any updated columns are indexed
* only by summarizing indexes (or in more general terms a
* call to table_tuple_update() took place and set
- * 'update_indexes' to TUUI_Summarizing). We can (and must)
+ * 'update_indexes' to TU_Summarizing). We can (and must)
* therefore only update the indexes that have
* 'amsummarizing' = true.
*